🔬 Discovery

Discovery of deuterium

Descubrimiento del deuterio

Date
1931 · confidence high
Place
Columbia University, New York, United States
Credited to
Harold Urey, with Ferdinand Brickwedde and George Murphy
Field
Matter & energy

What was discovered

Harold Urey spectroscopically identified deuterium, the stable hydrogen isotope with an extra neutron, after concentrating liquid hydrogen by fractional distillation with Ferdinand Brickwedde. The finding earned him the 1934 Nobel Prize in Chemistry.

The physical concentration of liquid hydrogen was carried out at the National Bureau of Standards in Washington, D.C., with Ferdinand Brickwedde; Urey analyzed the resulting spectrum at Columbia.

What it led to

  • Heavy water as a nuclear reactor moderator
  • Isotopic labeling in chemistry and biology
  • The 1934 Nobel Prize in Chemistry for Urey
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